<!--  -->
<template>
  <div>
      <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item :to="{ path: '/goods'}">商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!--  -->
    <el-card>
        <el-alert title="添加商品信息" type="success" center  show-icon :closable ="false"></el-alert>
        <el-steps :space="200" :active="stepActive -0" finish-status="success" align-center>
          <el-step title="基本信息"></el-step>
          <el-step title="商品参数"></el-step>
          <el-step title="物品属性"></el-step>
          <el-step title="商品图片"></el-step>
          <el-step title="商品内容"></el-step>
          <el-step title="完成"></el-step>
        </el-steps>
        <el-form :model="addFrom" :rules="addFormRules" ref="addFormRef" label-width="100px" label-position="top">
          <el-tabs :tab-position="'left'"
              label-positionrr
              v-model="stepActive"
              :before-leave="beforeTabLeaveChange"
              @tab-click="addTabClick">
            <!-- 基本信息 -->
            <el-tab-pane label="基本信息" name="0">
              <el-form-item label="商品名称" prop="goods_name">
                <el-input v-model="addFrom.goods_name" placeholder="请输入商品名称"></el-input>
              </el-form-item>
              <el-form-item label="商品价格" prop="goods_price">
                <el-input v-model="addFrom.goods_price" type="number" placeholder="请输入商品价格"></el-input>
              </el-form-item>
              <el-form-item label="商品重量" prop="goods_weight">
                <el-input v-model="addFrom.goods_weight" type="number" placeholder="请输入商品重量"></el-input>
              </el-form-item>
              <el-form-item label="商品数量" prop="goods_number">
                <el-input v-model="addFrom.goods_number" type="number" placeholder="请输入商品数量"></el-input>
              </el-form-item>
              <el-form-item label="商品分类" prop="goods_cat">
                <el-cascader :options="cateList" :props="casProps" v-model="addFrom.goods_cat" @change="handleCasChange"></el-cascader>
              </el-form-item>
            </el-tab-pane>
            <!-- 商品参数 -->
            <el-tab-pane label="商品参数" name="1">
              <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
                <el-checkbox-group v-model="item.attr_vals">
                  <el-checkbox border  :label="itemV" :key="index" v-for="(itemV,index) in item.attr_vals"></el-checkbox>
                </el-checkbox-group>
              </el-form-item>
            </el-tab-pane>
            <!-- 商品属性 -->
            <el-tab-pane label="商品属性" name="2">
              <el-form-item :label="item1.attr_name" v-for="item1 in onlyTableData" :key="item1.id">
                <el-input v-model="item1.arrt_vals" ></el-input>
              </el-form-item>
            </el-tab-pane>
            <!-- 商品图片 -->
            <el-tab-pane label="商品图片" name="3">
              <el-upload
                :action="upLoadURl"
                :on-preview="handleUploadPreview"
                :on-remove="handleUploadRemove"
                :on-success="handleUploadSuccess"
                :on-error="handleUploadError"
                list-type="picture"
                :headers="uploadHeadersObj">
                <el-button size="small" type="primary">点击上传</el-button>
              </el-upload>
            </el-tab-pane>
            <el-tab-pane label="商品内容" name="4">
              <quill-editor v-model="addFrom.goods_introduce"
                ref="myQuillEditor"
                :options="editorOption"
                @blur="onEditorBlur($event)"
                @focus="onEditorFocus($event)"
                @ready="onEditorReady($event)">
              </quill-editor>
              <el-button class="btn-add" type="primary" @click="addClickShop">添加商品</el-button>
            </el-tab-pane>
          </el-tabs>
        </el-form>
    </el-card>
    <!-- dialog图片预览 -->
    <el-dialog
      title="图片预览"
      :visible.sync="dialogVisible"
      width="50%"
      >
      <!-- 主要内容 -->
      <img :src="preViewPath" alt="" class="previewimg">
      <!-- 底部 -->
      <!-- <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible=false" >取消</el-button>
        <el-button type="primary" @click="dialogClick">确定</el-button>
      </span> -->
    </el-dialog>
  </div>
</template>

<script>
import _ from 'lodash'
export default {
  created () {
    this.getCatList()
  },
  data () {
    return {
      stepActive: 0,
      addFrom: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics: [],
        goods_introduce: '',
        attrs: []
      },
      addFormRules: {
        goods_name: [
          {
            required: true,
            message: '请输入商品名称',
            trigger: 'blur'
          }
        ],
        goods_price: [
          {
            required: true,
            message: '请输入商品价格',
            trigger: 'blur'
          }
        ],
        goods_weight: [
          {
            required: true,
            message: '请输入商品重量',
            trigger: 'blur'
          }
        ],
        goods_number: [
          {
            required: true,
            message: '请输入商品数量',
            trigger: 'blur'
          }
        ],
        goods_cat: [
          {
            required: true,
            message: '请选择商品分类',
            trigger: 'blur'
          }
        ]
      },
      cateList: [],
      casProps: {
        expandTrigger: 'hover',
        label: 'cat_name',
        value: 'cat_id',
        children: 'children'
      },
      // 动态参数列表
      manyTableData: [],
      onlyTableData: [],
      upLoadURl: 'http://127.0.0.1:8888/api/private/v1/upload',
      uploadHeadersObj: {
        Authorization: window.sessionStorage.getItem('token')
      },
      preViewPath: '',
      dialogVisible: false
    }
  },
  methods: {
    // 获取商品分类列表
    async getCatList () {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      }
      this.cateList = res.data
    },
    handleCasChange () {
      if (this.addFrom.goods_cat.length !== 3) {
        this.addFrom.goods_cat = []
      }
    },
    beforeTabLeaveChange (activeName, oldActiveName) {
      if (oldActiveName === '0' && this.addFrom.goods_cat.length !== 3) {
        this.$message.error('请先选择商品分类')
        return false
      }
    },
    async addTabClick () {
      if (this.stepActive === '1') {
        const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, {
          params: {
            sel: 'many'
          }
        })
        if (res.meta.status !== 200) {
          return this.$message.error('获取动态参数信息失败')
        }
        console.log(res.data)
        res.data.forEach(item => {
          item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
        this.manyTableData = res.data
      } else if (this.stepActive === 2) {
        const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, {
          params: {
            sel: 'only'
          }
        })
        if (res.meta.status !== 200) {
          return this.$message.error('获取动态参数信息失败')
        }
        console.log(res.data)
        res.data.forEach(item => {
          item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
        this.onlyTableData = res.data
      }
    },
    // 点击文件列表中已上传的文件时的钩子
    handleUploadPreview (file) {
      this.preViewPath = file.response.data.url
      this.dialogVisible = true
    },
    // 文件列表移除文件时的钩子
    handleUploadRemove (file, fileList) {
      const filePath = file.response.data.tmp_path
      const picIndex = this.addFrom.pics.findIndex(item =>
        item.pic === filePath
      )
      this.addFrom.pics.splice(picIndex, 1)
    },
    // 文件上传成功时的钩子
    handleUploadSuccess (response, file, fileList) {
      const picInfo = { pic: response.data.tmp_path }
      this.addFrom.pics.push(picInfo)
    },
    // 文件上传失败时的钩子
    handleUploadError () {

    },
    // dialog确定事件
    dialogClick () {

    },
    // 添加商品点击事件
    addClickShop () {
      this.$refs.addFormRef.validate(async validate => {
        if (!validate) {
          return this.$message.error('请填写必要表单项目')
        }
        // chuli
        this.manyTableData.forEach(item => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals.join(' ') }
          this.addFrom.attrs.push(newInfo)
        })
        this.onlyTableData.forEach(item => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals }
          this.addFrom.attrs.push(newInfo)
        })
        const form = _.cloneDeep(this.addFrom)
        form.goods_cat = form.goods_cat.join(',')
        // form.attrs = this.addFrom.attrs
        let { data: res } = await this.$http.post(`goods`, form)
        if (res.meta.status !== 201) {
          return this.$message.error('添加商品失败')
        }
        this.$message.success('添加商品成功')
        this.$router.push('/goods')
      })
    }
  },
  computed: {
    cateId () {
      if (this.addFrom.goods_cat.length === 3) {
        return this.addFrom.goods_cat[2]
      }
      return null
    }
  }
}
</script>
<style lang='less' scoped>
.el-checkbox{
  margin: 0 15px 0 0 !important
}
.previewimg {
  width: 100%;
}
.btn-add{
  margin-top: 15px;
}
</style>
